Visualization of Jet Impingement and Ignition in a Piston-Cylinder Chamber

Research output: NRELPresentation


The transportation sector accounts for almost a third of the United States energy consumption. We are developing predictive simulations of the complex in-cylinder processes of internal combustion engines to improve performance and decrease pollutant emissions. Using volume rendering, we provide a first look at the jet impingement and ignition inside a piston-cylinder chamber. Through the visualization, we were able to construct a complete 3D picture of the jet impingement on the piston-bowl walls leading to the formation of pockets of auto-ignition of fuel-air mixture. These auto-ignition pockets subsequently lead to flame stabilization releasing the chemical energy for conversion to useful work. A detailed physical picture of flame stabilization as provided by the visualization techniques presented in this study help in the design next-generation internal combustion engines.
Original languageAmerican English
Number of pages21
StatePublished - 2021

Publication series

NamePresented at EnergyVis 2021, 28 June 2021

NREL Publication Number

  • NREL/PR-2C00-80390


  • combustion
  • high performance computing
  • scientific visualization


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